Quoth Phil Pennock on Fri, May 19, 2000:
> Embedded perl.
Heavy. The problem with this approach is that there is an
overhead in every Exim process, not only those that actually run
the Perl functions. Embedded awk anyone? ;) A better idea,
though, would be half-embedded C. A documented interface to
random text-processing C functions in Exim. Then, just write
them and compile them in.
If I were generating lists of all users on the fly (as opposed to
nightly), I would probably do it with an external program that
takes the message and re-submits it back to Exim with lots of
recipient addresses. I'd write it in Ada just to make a point.
> I started looking at multiple ${if ...} nests but it
> started getting really sick even before I had the 'collect all users'
> logic figured out.
I can't think of any way to generate list of all users from
within Exim. Except embedded Perl, that is.
> I used ${originator_uid} but switched it to _gid for
> the example below.
Which means that you can mail all only if you're of this gid and
submit the message locally? Nice. But you can handle similrar
things with a moderated mailing list. It's true that mailing
list security is not really high, though.
> Set ALLPOSTGID. Does Exim interpolate things like
> LOCALDOM into strings as below?
Not into strings. It adds qualify_domain to the naked local
parts.
> #[ directors section ]
> all_users:
> driver = smartuser
> domains = localhost
> condition = ${if eq {$local_part}{all-users} \
> {${if ={${originator_gid}}{ALLPOSTGID} {yes}{no}}} {no}}} \
Replace the condition with:
local_parts = all-users
condition = ${if ={${originator_gid}}{ALLPOSTGID}{yes}{no}}
> rewrite = true
This is the default.
> headers_add = "X-List: all-users.LOCALDOM (private)"
> new_address = ${perl{all_users}}
Vadik.
--
Prof: So the American government went to IBM to come up with a data
encryption standard and they came up with ...
Student: EBCDIC!
